Cozumel Villas

Does anyone have any info on any villas in Cozumel. We are trying to find a place to host our wedding in June 2010 for about 30 people. We are looking into renting three villas, Villa Iguanas Ranas (two next door to eachother which we would rent as one) and Villa Renas which is supposedly 200 meters away. I wanted to know if anyone knows of these places or other villas that they can recommend on the island. We wanted someplace private where everyone could sleep and hang out for the week. The only thing I am worried about is that the description says that it is on a white sandy beach but none of the pictures show the beach so I am concerned it is all just rock.

Another place we were looking at is Casa Gordon which looks like it has a really nice beach but is too small for all of our guests. Does anyone know if there is another villa nearby or next door that we could rent out as well?